Malicious PDF — malware analysis report

Heuristics 5

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL https://ggtraff.ru/wb?keyword=punto%20de%20congelacion%20del%20agua In PDF document text

  • https://jubunukaf.weebly.com/uploads/1/3/1/4/131483214/0246eea4fe06.pdfIn PDF document text
  • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/9019550.pdfIn PDF document text
  • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/guxazitukof_rujineba_dupif_rezuvin.pdfIn PDF document text
  • https://s3.amazonaws.com/sefiwegegagu/morel_mushrooms_southeast_wisconsin.pdfIn PDF document text
  • https://kunulidozejenu.weebly.com/uploads/1/3/3/9/133997834/0b13f.pdfIn PDF document text
  • https://s3.amazonaws.com/mubefula/73763655458.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000661e.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000661e.bin)
  • https://uploads.strikinglycdn.com/files/b71d1abe-23c8-49da-b53d-3dd327379afe/sofovekituzabiwosusazuwa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/8324/4714/files/gawamedi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0501/5971/4454/files/how_to_hack_mortal_kombat_x_android_2019.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cb22572c-2778-45f9-9edf-5c172354dce2/an_operational_definition_is_blank.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e8d298ae-bf2e-4b4e-b4db-81a333c535f3/library_genesis_website.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://scripts.sil.org/OFLIn extracted file (font_00_sfnt_off0000661e.bin)

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